CN110685313A - Adjustable guardrail and engineering equipment - Google Patents
Adjustable guardrail and engineering equipment Download PDFInfo
- Publication number
- CN110685313A CN110685313A CN201910953563.5A CN201910953563A CN110685313A CN 110685313 A CN110685313 A CN 110685313A CN 201910953563 A CN201910953563 A CN 201910953563A CN 110685313 A CN110685313 A CN 110685313A
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- limiting
- telescopic rod
- adjustable guardrail
- mounting
- limiting hole
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- 238000012423 maintenance Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses an adjustable guardrail and engineering equipment, and relates to the technical field of guardrail structures. This adjustable guardrail includes the handle, installation sleeve and locating part, the handle includes interconnect's the portion of gripping and telescopic link, the portion of gripping is used for supplying maintainer to control, first spacing hole has been seted up to the side of telescopic link, the spacing hole of the second of a plurality of co-altitude not has been seted up on the installation sleeve, the installation sleeve is used for installing in the maintenance passageway of engineering equipment, and the suit is in the telescopic link, and the telescopic link can follow the installation sleeve motion, make first spacing hole relative with arbitrary spacing hole of a second, the locating part sets up in the inner space of telescopic link, and can stretch out or retract the telescopic link by first spacing hole, and the locating part can be held in the spacing downthehole of second when stretching out the telescopic link card, move for the installation sleeve with the. This adjustable guardrail and engineering equipment have can height-adjusting, the stronger characteristics of suitability.
Description
Technical Field
The invention relates to the technical field of guardrail structures, in particular to an adjustable guardrail and engineering equipment.
Background
For engineering equipment, especially an excavator, a maintenance channel is generally arranged on the engineering equipment, and in order to ensure that maintenance personnel can safely pass through the maintenance channel, a handrail or a protective guard is generally arranged on the engineering equipment to provide a holding position so as to prevent the maintenance personnel from accidentally falling from the maintenance channel.
However, the existing guardrail is generally fixedly welded on the maintenance channel, the height of the guardrail is difficult to adjust, the use requirements of maintenance personnel with different heights are difficult to meet, and the safety is low.
In view of this, it is very important to develop an adjustable guardrail and engineering equipment capable of solving the above technical problems.
Disclosure of Invention
The invention aims to provide an adjustable guardrail which has the characteristics of adjustable height and strong adaptability.
The invention also aims to provide the engineering equipment, wherein the guardrail has the characteristics of adjustable height and strong adaptability.
The invention provides a technical scheme that:
in a first aspect, an embodiment of the present invention provides an adjustable guardrail, including a handle, an installation sleeve, and a limiting member; the handle comprises a holding part and a telescopic rod which are connected with each other, the holding part is used for being held by maintenance personnel, and a first limiting hole is formed in the side surface of the telescopic rod; the mounting sleeve is used for being mounted in a maintenance channel of engineering equipment and sleeved on the telescopic rod, and the telescopic rod can move along the mounting sleeve so that the first limiting hole is opposite to any one second limiting hole; the limiting part is arranged in the inner space of the telescopic rod and can be extended out of or retracted into the telescopic rod from the first limiting hole, and the limiting part can be clamped in the second limiting hole when the telescopic rod is extended out, so that the telescopic rod is limited to move relative to the mounting sleeve.
With reference to the first aspect, in a first implementation manner of the first aspect, the adjustable guardrail further includes a limiting elastic member, and the limiting elastic member is disposed in the telescopic rod; the two ends of the limiting elastic part are respectively abutted against the inner wall of the telescopic rod and the limiting part, so that the limiting part has a tendency of extending out of the telescopic rod under the elastic action of the limiting elastic part.
With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, the limiting member includes a clamping portion, the clamping portion is disposed through the first limiting hole, and an abutting groove is disposed at an end close to the inside of the telescopic rod; one end of the limiting elastic piece abuts against the inner wall of the telescopic rod, and the other end of the limiting elastic piece extends into the abutting groove and abuts against the bottom wall of the abutting groove.
With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the limiting member further includes a limiting portion, and the limiting portion is connected to the retaining portion and located inside the telescopic rod; the limiting part can abut against the inner wall of the telescopic rod when the limiting part extends out of the first limiting hole from the telescopic rod, so that the part of the limiting part extending out of the first limiting hole is limited.
With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, the handle includes two telescopic rods, the two telescopic rods are respectively connected to two ends of the holding portion, and the holding portion and the two telescopic rods are U-shaped; the adjustable guardrail comprises two mounting sleeves, and the two mounting sleeves are respectively sleeved at one ends, far away from the holding part, of the two telescopic rods.
With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the handle further includes a reinforcing rod, and two ends of the reinforcing rod are respectively connected to the two telescopic rods.
With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the adjustable guardrail further includes a mounting plate, and the mounting plate is configured to be mounted to the maintenance channel; the mounting panel is connected the installation sleeve pipe is kept away from the one end of telescopic link, just the mounting panel with installation sleeve pipe's extending direction is perpendicular.
With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, the adjustable guardrail further includes a reinforcement member, and the reinforcement member is connected to an outer side wall of the mounting sleeve and connected to the mounting plate.
With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, the number of the reinforcing members is multiple, and the multiple reinforcing members are disposed around the outer periphery of the mounting sleeve.
In a second aspect, an embodiment of the present invention further provides an engineering device, including a device main body and the adjustable guardrail, where the device main body is provided with a maintenance channel, and the installation sleeve is installed in the maintenance channel. The adjustable guardrail comprises a handle, an installation sleeve and a limiting piece; the handle comprises a holding part and a telescopic rod which are connected with each other, the holding part is used for being held by maintenance personnel, and a first limiting hole is formed in the side surface of the telescopic rod; the mounting sleeve is used for being mounted in a maintenance channel of engineering equipment and sleeved on the telescopic rod, and the telescopic rod can move along the mounting sleeve so that the first limiting hole is opposite to any one second limiting hole; the limiting part is arranged in the inner space of the telescopic rod and can be extended out of or retracted into the telescopic rod from the first limiting hole, and the limiting part can be clamped in the second limiting hole when the telescopic rod is extended out, so that the telescopic rod is limited to move relative to the mounting sleeve.
Compared with the prior art, the adjustable guardrail and the engineering equipment provided by the embodiment of the invention have the beneficial effects that:
the handle includes interconnect's the portion of gripping and telescopic link, wherein, the portion of gripping is used for supplying maintainer to control, telescopic link and installation bushing connect, the installation sleeve pipe is used for installing in the maintenance passageway of engineering equipment, and the installation sleeve pipe passes through the mode of suit and connects in the telescopic link, and, first spacing hole has been seted up to the side of telescopic link, and has seted up the spacing hole of a plurality of co-altitude second on the installation sleeve pipe, the telescopic link can be followed the installation sleeve pipe and moved, and can make first spacing hole relative with the spacing hole of arbitrary second. The limiting part is arranged in the inner space of the telescopic rod, the limiting part can extend out of or retract into the telescopic rod from the first limiting hole, the limiting part can be clamped in the second limiting hole when the telescopic rod extends out of the telescopic rod, and then the telescopic rod is made to move along the installation sleeve so as to lock the height of the holding part. Therefore, the first limiting hole is opposite to the second limiting holes with different heights, the corresponding second limiting holes are clamped through the limiting parts, the height of the holding part is adjusted, the adjustable guardrail has the height adjusting function, maintenance personnel adapting to different heights hold the guardrail, and the adaptability of the adjustable guardrail is improved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural view of an adjustable guardrail applied to engineering equipment according to an embodiment of the invention.
Fig. 2 is a schematic structural view of an adjustable guardrail provided by an embodiment of the invention.
Fig. 3 is a schematic cross-sectional view of a position-limiting part of an adjustable guardrail according to an embodiment of the present invention.
Icon: 100-engineering equipment; 20-a device body; 10-adjustable guard bar; 12-a handle; 121-a grip portion; 122-a telescoping rod; 1222-a first limiting hole; 123-reinforcing rods; 15-installing the sleeve; 151-second limiting hole; 16-a limiting elastic member; 17-a limit stop; 171-a catch; 1713-holding the groove; 173-a limiting part; 18-a mounting plate; 181-mounting a connecting hole; 19-a reinforcement.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the inventive product, or as would be conventionally understood by one skilled in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example (b):
referring to fig. 1, fig. 1 is a schematic structural diagram of an adjustable guardrail 10 applied to engineering equipment 100 according to an embodiment of the present invention.
The embodiment of the invention provides an adjustable guardrail 10, and the adjustable guardrail 10 has the characteristics of adjustable height and strong adaptability. The adjustable guard rail 10 can be applied to the construction equipment 100 such as an excavator, a crane, a piling machine, a rock drill, etc., and of course, the adjustable guard rail 10 can be used independently.
Taking the example of applying the adjustable guardrail 10 to the engineering equipment 100, the engineering equipment 100 includes an equipment main body 20 and the adjustable guardrail 10, a maintenance channel (not shown) is provided on the equipment main body 20 for maintenance personnel to maintain the equipment main body 20 through the maintenance channel, and the adjustable guardrail 10 is installed on the maintenance channel to provide a holding position for the maintenance personnel and ensure that the maintenance personnel can pass safely.
Because the engineering equipment 100 adopts the adjustable guardrail 10 provided by the embodiment of the invention, the engineering equipment 100 also has the characteristics of adjustable height and strong adaptability.
The structural composition, the working principle and the advantageous effects of the adjustable guardrail 10 provided by the embodiment of the invention will be described in detail below.
Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of an adjustable guardrail 10 according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of a limiting member 17 of the adjustable guardrail 10 according to an embodiment of the present invention.
The adjustable guardrail 10 comprises a handle 12, a mounting sleeve 15 and a limiting piece 17, wherein the limiting piece 17 is used for being matched with the handle 12 and the mounting sleeve 15 so as to adjust the height of the handle 12, so that the adjustable guardrail 10 can adapt to maintenance personnel with different heights, and the adaptability of the adjustable guardrail 10 is improved;
the handle 12 includes a holding portion 121 and a telescopic rod 122 connected to each other, wherein the holding portion 121 is used for being held by a maintenance person, the telescopic rod 122 is connected to the mounting sleeve 15, the mounting sleeve 15 is used for being mounted in a maintenance passage of the engineering equipment 100, the mounting sleeve 15 is connected to the telescopic rod 122 in a sleeving manner, a first limiting hole 1222 is formed in a side surface of the telescopic rod 122, a plurality of second limiting holes 151 with different heights are formed in the mounting sleeve 15, the telescopic rod 122 can move along the mounting sleeve 15, and the first limiting hole 1222 can be opposite to any one of the second limiting holes 151.
The position-limiting element 17 is disposed in the inner space of the telescopic rod 122, the position-limiting element 17 can extend out of the first position-limiting hole 1222 or retract into the telescopic rod 122, and the position-limiting element 17 can be clamped in the second position-limiting hole 151 when extending out of the telescopic rod 122, so that the telescopic rod 122 can move along the mounting sleeve 15 to lock the height of the holding portion 121.
Therefore, the adjustable guardrail 10 has the height adjusting function by which the first limiting hole 1222 is opposite to the second limiting holes 151 with different heights and the limiting part 17 is clamped in the corresponding second limiting hole 151 so as to adjust the height of the holding part 121, so that the adjustable guardrail 10 is suitable for being held by maintainers with different heights, and the adaptability of the adjustable guardrail 10 is improved.
It should be noted that, when in use, the limiting member 17 can be retracted into the telescopic rod 122 by pressing the limiting member 17, so as to cancel the clamping with the corresponding second limiting hole 151, and when the telescopic rod 122 is moved along the mounting sleeve 15, so that the holding portion 121 reaches about the preset height, the second limiting hole 151, which is closer to the first limiting hole 1222 when the holding portion 121 reaches the preset height, is opposite to the first limiting hole 1222, and the limiting member 17 is driven to extend out of the telescopic rod 122, so as to be clamped in the corresponding second limiting hole 151, thereby locking the telescopic rod 122 and the mounting sleeve 15, and further completing the height adjustment of the holding portion 121.
Further, the handle 12 may include two telescopic rods 122, and the two telescopic rods 122 are respectively connected to two ends of the holding portion 121, and the holding portion 121 and the two telescopic rods 122 together form a substantially U-shaped structure.
And the adjustable guardrail 10 can include two mounting sleeves 15, two mounting sleeves 15 are respectively sleeved on one ends of two telescopic rods 122 far away from the holding part 121, the handle 12 can adjust the height of the holding part 121 along the opening direction of the U-shaped opening or the opposite direction of the U-shaped opening, and the stability of locking the height of the adjustable guardrail 10 is improved through the arrangement of the two telescopic rods 122.
Further, the handle 12 may further include a reinforcing rod 123, and two ends of the reinforcing rod 123 are respectively connected to the two telescopic rods 122, so that the reinforcing rod 123, the holding portion 121 and the two telescopic rods 122 together form a square shape, so that the handle 12 is not easily twisted and deformed, thereby further increasing the stability of the adjustable guardrail 10.
Referring to fig. 2, the adjustable guardrail 10 further includes a mounting plate 18, the mounting plate 18 is used for being mounted in the maintenance passageway, the mounting plate 18 is connected to an end of the mounting sleeve 15 away from the telescopic rod 122, and the mounting plate 18 is perpendicular to the extending direction of the mounting sleeve 15, in other words, the normal direction of the mounting plate 18 is the extending direction of the mounting sleeve 15. The mounting sleeve 15 is attached to the service passage by means of a mounting plate 18 to improve the stability of the mounting sleeve 15 to the service passage.
It should be noted that, in this embodiment, the mounting plate 18 is further provided with a plurality of mounting connection holes 181 arranged along the edge of the mounting plate 18, so as to allow bolts to pass through, and connect the mounting plate 18 to the maintenance passage.
Further, the adjustable guardrail 10 may further include a reinforcement 19, and the reinforcement 19 is connected to the outer sidewall of the mounting sleeve 15 and connected to the mounting plate 18, so that the mounting sleeve 15 is not easily inclined relative to the mounting plate 18 by an external force, and the stability of the adjustable guardrail 10 is improved.
In the present embodiment, the number of the reinforcing members 19 is plural, and the plural reinforcing members 19 are wound around the outer periphery of the mounting sleeve 15, so that the probability of the mounting sleeve 15 being inclined with respect to the mounting plate 18 by the external force is reduced from plural angles, and the stability of the adjustable guard rail 10 is further improved.
Referring to fig. 3, the adjustable guardrail 10 may further include a limiting elastic member 16, the limiting elastic member 16 is disposed in the telescopic rod 122, and two ends of the limiting elastic member 16 respectively abut against the inner wall of the telescopic rod 122 and the limiting member 17, so that the limiting member 17 tends to extend out of the telescopic rod 122 under the elastic action of the limiting elastic member 16, in other words, the limiting elastic member 16 is disposed between the inner wall of the telescopic rod 122 and the limiting member 17, and the limiting member 17 can be driven to extend out of the telescopic rod 122 due to elastic deformation.
Thus, when the height of the holding portion 121 is adjusted, the limiting member 17 can be pressed, at this time, the limiting elastic member 16 is compressed by elastic deformation, and the limiting member 17 retracts into the telescopic rod 122 to cancel the clamping with the corresponding second limiting hole 151, and when the telescopic rod 122 moves along the mounting sleeve 15 to adjust the height of the holding portion 121, the limiting member 17 will extend out of the telescopic rod 122 under the elastic action of the limiting elastic member 16 and clamp in the corresponding second limiting hole 151 when the first limiting hole 1222 is opposite to the other second limiting hole 151 when the telescopic rod 122 moves along the mounting sleeve 15, so as to lock the telescopic rod 122 and the mounting sleeve 15, thereby completing the height adjustment of the holding portion 121.
It should be noted that, in the present embodiment, the limiting elastic member 16 is a coil spring, and in other embodiments, the limiting elastic member 16 may also be other kinds of elastic members, such as elastic rubber, a torsion spring, and the like.
Further, the limiting member 17 may include a clamping portion 171, the clamping portion 171 penetrates through the first limiting hole 1222, and one end of the clamping portion 171 close to the inside of the telescopic rod 122 is provided with a supporting groove 1713, one end of the limiting elastic member 16 supports against the inner wall of the telescopic rod 122, and the other end extends into the supporting groove 1713 and supports against the bottom wall of the supporting groove 1713, in other words, the clamping portion 171 is sleeved on the limiting elastic member 16, so that the connection between the clamping portion 171 and the limiting elastic member 16 is not easy to loosen and is more stable.
It should be noted that, in the present embodiment, the limiting elastic member 16 further abuts against the side wall of the abutting groove 1713, so as to further increase the connection stability between the limiting elastic member 16 and the retaining portion 171, and in other embodiments, the limiting elastic member 16 may also be connected to the retaining portion 171 by welding or bolting.
Further, the position-limiting member 17 may further include a position-limiting portion 173, the position-limiting portion 173 is connected to the holding portion 171 and is located inside the telescopic rod 122, and the position-limiting portion 173 can abut against an inner wall of the telescopic rod 122 when the position-limiting member 17 extends out of the first position-limiting hole 1222 toward the telescopic rod 122, so as to limit a portion of the position-limiting portion 173 extending out of the first position-limiting hole 1222. In other words, the limiting portion 173 is used to limit the length of the portion of the clip portion 171 extending out of the first limiting hole 1222, so as to prevent the clip portion 171 from separating from the first limiting hole 1222, and improve the working stability of the limiting member 17.
It should be noted that, in the present embodiment, the limiting portion 173 is disposed around the periphery of the retaining portion 171, so as to abut against the inner wall of the telescopic rod 122 when the limiting portion 173 extends out of the telescopic rod 122, so as to limit the length of the portion of the retaining portion 171 extending out of the first limiting hole 1222, and improve the stability of the adjustable guardrail 10.
The working principle of the adjustable guardrail 10 provided by the embodiment of the invention is as follows:
when the grip 121 needs to be raised to a certain height, the stopper 17 can be pressed to release the retaining between the stopper 17 and the corresponding second limiting hole 151, and the grip 121 is pulled out upward to move the telescopic rod 122 upward along the mounting sleeve 15, at this time, the retaining portion 171 is abutted against the inner wall of the telescopic rod 122 under the action of the limiting elastic member 16, and when the grip 121 reaches a suitable position and the first limiting hole 1222 is opposite to the other higher second limiting hole 151, the retaining portion 171 is extended outward toward the telescopic rod 122 under the action of the limiting elastic member 16 and retained in the corresponding second limiting hole 151 to lock the telescopic rod 122 and the mounting sleeve 15, thereby limiting the height of the grip 121, at this time, the limiting portion 173 is abutted against the inner wall of the telescopic rod 122 to limit the further extension of the retaining portion 171 out of the telescopic rod 122.
When the height of the grip 121 needs to be lowered, the limiting member 17 can be pressed to release the clamping between the limiting member 17 and the corresponding second limiting hole 151, and at the same time, the grip 121 is pressed downward to move the telescopic rod 122 downward along the mounting sleeve 15, at this time, the clamping member 171 is abutted against the inner wall of the telescopic rod 122 under the action of the limiting elastic member 16, and when the grip 121 reaches a suitable position and the first limiting hole 1222 is opposite to the other lower second limiting hole 151, the clamping member 171 is extended outward toward the telescopic rod 122 under the action of the limiting elastic member 16 and clamped in the corresponding second limiting hole 151 to lock the telescopic rod 122 and the mounting sleeve 15, thereby limiting the height of the grip 121, at this time, the limiting member 173 is abutted against the inner wall of the telescopic rod 122 to limit the further extension of the clamping member 171 out of the telescopic rod 122.
In summary, the following steps:
the embodiment of the invention provides an adjustable guardrail 10 which has the characteristics of adjustable height and strong adaptability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that the features in the above embodiments may be combined with each other and the present invention may be variously modified and changed without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. An adjustable guardrail is characterized by comprising a handle, an installation sleeve and a limiting piece;
the handle comprises a holding part and a telescopic rod which are connected with each other, the holding part is used for being held by maintenance personnel, and a first limiting hole is formed in the side surface of the telescopic rod;
the mounting sleeve is used for being mounted in a maintenance channel of engineering equipment and sleeved on the telescopic rod, and the telescopic rod can move along the mounting sleeve so that the first limiting hole is opposite to any one second limiting hole;
the limiting part is arranged in the inner space of the telescopic rod and can be extended out of or retracted into the telescopic rod from the first limiting hole, and the limiting part can be clamped in the second limiting hole when the telescopic rod is extended out, so that the telescopic rod is limited to move relative to the mounting sleeve.
2. The adjustable guardrail of claim 1 further comprising a limiting elastic member disposed within the telescoping rod;
two ends of the limiting elastic part are respectively abutted against the inner wall of the telescopic rod and the limiting part, so that the limiting part has a tendency of extending out of the telescopic rod under the elastic action of the limiting elastic part.
3. The adjustable guardrail of claim 2, wherein the limiting member comprises a clamping portion, the clamping portion is arranged in the first limiting hole in a penetrating manner, and one end of the clamping portion close to the inside of the telescopic rod is provided with a supporting groove;
one end of the limiting elastic piece abuts against the inner wall of the telescopic rod, and the other end of the limiting elastic piece extends into the abutting groove and abuts against the bottom wall of the abutting groove.
4. The adjustable guardrail of claim 3 wherein the stop member further comprises a stop portion connected to the catch portion and located within the telescoping rod;
the limiting part can abut against the inner wall of the telescopic rod when the limiting part extends out of the first limiting hole from the telescopic rod, so that the part of the limiting part extending out of the first limiting hole is limited.
5. The adjustable guardrail of claim 1, wherein the handle comprises two telescopic rods, the two telescopic rods are respectively connected to two ends of the holding part, and the holding part and the two telescopic rods are arranged in a U shape;
the adjustable guardrail comprises two mounting sleeves, and the two mounting sleeves are respectively sleeved at one ends, far away from the holding part, of the two telescopic rods.
6. The adjustable guardrail of claim 5 wherein the handle further comprises a reinforcing rod connected at each end to the two telescoping rods.
7. The adjustable guardrail of claim 1, further comprising a mounting plate for mounting to the maintenance channel;
the mounting panel is connected the installation sleeve pipe is kept away from the one end of telescopic link, just the mounting panel with installation sleeve pipe's extending direction is perpendicular.
8. The adjustable guardrail of claim 7, further comprising a reinforcement connected to an outer sidewall of the mounting sleeve and connected to the mounting plate.
9. The adjustment fence according to claim 8, wherein the number of the reinforcing members is plural, and a plurality of the reinforcing members are provided around an outer periphery of the mounting sleeve.
10. An engineering device, characterized by comprising a device body and an adjustable guardrail according to any one of claims 1-9, wherein the device body is provided with a maintenance channel, and the installation sleeve is installed on the maintenance channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953563.5A CN110685313A (en) | 2019-09-29 | 2019-09-29 | Adjustable guardrail and engineering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953563.5A CN110685313A (en) | 2019-09-29 | 2019-09-29 | Adjustable guardrail and engineering equipment |
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| CN110685313A true CN110685313A (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910953563.5A Pending CN110685313A (en) | 2019-09-29 | 2019-09-29 | Adjustable guardrail and engineering equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111508333A (en) * | 2020-04-17 | 2020-08-07 | 广东电网有限责任公司 | Switch board warning device |
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| JPH08277546A (en) * | 1995-04-06 | 1996-10-22 | Shin Caterpillar Mitsubishi Ltd | Handrail structure in construction machine |
| CN106460368A (en) * | 2014-06-11 | 2017-02-22 | 沃尔沃建造设备有限公司 | Guardrail for construction equipment |
| CN206448612U (en) * | 2017-01-17 | 2017-08-29 | 温州市华宏市政园林工程建设有限公司 | A kind of ornamental plant guardrail |
| CN107165353A (en) * | 2017-07-06 | 2017-09-15 | 浙江老铁匠实业有限公司 | A kind of adjustable for height combined type stair railing |
| CN110273575A (en) * | 2019-07-03 | 2019-09-24 | 盛基家居用品开发(嘉善)有限公司 | A kind of steel tent top cloth installation and adjustment structure |
| CN210857340U (en) * | 2019-09-29 | 2020-06-26 | 上海三一重机股份有限公司 | Adjustable guardrail and engineering equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111508333A (en) * | 2020-04-17 | 2020-08-07 | 广东电网有限责任公司 | Switch board warning device |
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